kubespray/inventory/sample/group_vars/k8s-cluster/k8s-cluster.yml

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---
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# Kubernetes configuration dirs and system namespace.
# Those are where all the additional config stuff goes
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# the kubernetes normally puts in /srv/kubernetes.
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# This puts them in a sane location and namespace.
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# Editing those values will almost surely break something.
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kube_config_dir: /etc/kubernetes
kube_script_dir: "{{ bin_dir }}/kubernetes-scripts"
kube_manifest_dir: "{{ kube_config_dir }}/manifests"
# This is where all the cert scripts and certs will be located
kube_cert_dir: "{{ kube_config_dir }}/ssl"
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# This is where all of the bearer tokens will be stored
kube_token_dir: "{{ kube_config_dir }}/tokens"
# This is where to save basic auth file
kube_users_dir: "{{ kube_config_dir }}/users"
kube_api_anonymous_auth: true
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## Change this to use another Kubernetes version, e.g. a current beta release
kube_version: v1.17.4
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# kubernetes image repo define
kube_image_repo: "k8s.gcr.io"
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# Where the binaries will be downloaded.
# Note: ensure that you've enough disk space (about 1G)
local_release_dir: "/tmp/releases"
# Random shifts for retrying failed ops like pushing/downloading
retry_stagger: 5
# This is the group that the cert creation scripts chgrp the
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# cert files to. Not really changeable...
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kube_cert_group: kube-cert
# Cluster Loglevel configuration
kube_log_level: 2
# Directory where credentials will be stored
credentials_dir: "{{ inventory_dir }}/credentials"
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# Users to create for basic auth in Kubernetes API via HTTP
# Optionally add groups for user
kube_api_pwd: "{{ lookup('password', credentials_dir + '/kube_user.creds length=15 chars=ascii_letters,digits') }}"
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kube_users:
kube:
pass: "{{kube_api_pwd}}"
role: admin
groups:
- system:masters
## It is possible to activate / deactivate selected authentication methods (basic auth, static token auth)
# kube_oidc_auth: false
# kube_basic_auth: false
# kube_token_auth: false
## Variables for OpenID Connect Configuration https://kubernetes.io/docs/admin/authentication/
## To use OpenID you have to deploy additional an OpenID Provider (e.g Dex, Keycloak, ...)
# kube_oidc_url: https:// ...
# kube_oidc_client_id: kubernetes
## Optional settings for OIDC
# kube_oidc_ca_file: "{{ kube_cert_dir }}/ca.pem"
# kube_oidc_username_claim: sub
# kube_oidc_username_prefix: oidc:
# kube_oidc_groups_claim: groups
# kube_oidc_groups_prefix: oidc:
# Choose network plugin (cilium, calico, contiv, weave or flannel. Use cni for generic cni plugin)
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# Can also be set to 'cloud', which lets the cloud provider setup appropriate routing
kube_network_plugin: calico
# Setting multi_networking to true will install Multus: https://github.com/intel/multus-cni
kube_network_plugin_multus: false
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# Kubernetes internal network for services, unused block of space.
kube_service_addresses: 10.233.0.0/18
# internal network. When used, it will assign IP
# addresses from this range to individual pods.
# This network must be unused in your network infrastructure!
kube_pods_subnet: 10.233.64.0/18
# internal network node size allocation (optional). This is the size allocated
# to each node on your network. With these defaults you should have
# room for 4096 nodes with 254 pods per node.
kube_network_node_prefix: 24
# The port the API Server will be listening on.
kube_apiserver_ip: "{{ kube_service_addresses|ipaddr('net')|ipaddr(1)|ipaddr('address') }}"
kube_apiserver_port: 6443 # (https)
# kube_apiserver_insecure_port: 8080 # (http)
# Set to 0 to disable insecure port - Requires RBAC in authorization_modes and kube_api_anonymous_auth: true
kube_apiserver_insecure_port: 0 # (disabled)
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# Kube-proxy proxyMode configuration.
# Can be ipvs, iptables
kube_proxy_mode: ipvs
# configure arp_ignore and arp_announce to avoid answering ARP queries from kube-ipvs0 interface
# must be set to true for MetalLB to work
kube_proxy_strict_arp: false
# A string slice of values which specify the addresses to use for NodePorts.
# Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32).
# The default empty string slice ([]) means to use all local addresses.
# kube_proxy_nodeport_addresses_cidr is retained for legacy config
kube_proxy_nodeport_addresses: >-
{%- if kube_proxy_nodeport_addresses_cidr is defined -%}
[{{ kube_proxy_nodeport_addresses_cidr }}]
{%- else -%}
[]
{%- endif -%}
# If non-empty, will use this string as identification instead of the actual hostname
# kube_override_hostname: >-
# {%- if cloud_provider is defined and cloud_provider in [ 'aws' ] -%}
# {%- else -%}
# {{ inventory_hostname }}
# {%- endif -%}
## Encrypting Secret Data at Rest (experimental)
kube_encrypt_secret_data: false
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# DNS configuration.
# Kubernetes cluster name, also will be used as DNS domain
cluster_name: cluster.local
# Subdomains of DNS domain to be resolved via /etc/resolv.conf for hostnet pods
ndots: 2
# Can be coredns, coredns_dual, manual or none
dns_mode: coredns
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# Set manual server if using a custom cluster DNS server
# manual_dns_server: 10.x.x.x
# Enable nodelocal dns cache
enable_nodelocaldns: true
nodelocaldns_ip: 169.254.25.10
nodelocaldns_health_port: 9254
# nodelocaldns_external_zones:
# - zones:
# - example.com
# - example.io:1053
# nameservers:
# - 1.1.1.1
# - 2.2.2.2
# cache: 5
# - zones:
# - https://mycompany.local:4453
# nameservers:
# - 192.168.0.53
# cache: 0
# Enable k8s_external plugin for CoreDNS
enable_coredns_k8s_external: false
coredns_k8s_external_zone: k8s_external.local
# Enable endpoint_pod_names option for kubernetes plugin
enable_coredns_k8s_endpoint_pod_names: false
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# Can be docker_dns, host_resolvconf or none
resolvconf_mode: docker_dns
# Deploy netchecker app to verify DNS resolve as an HTTP service
deploy_netchecker: false
# Ip address of the kubernetes skydns service
skydns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(3)|ipaddr('address') }}"
skydns_server_secondary: "{{ kube_service_addresses|ipaddr('net')|ipaddr(4)|ipaddr('address') }}"
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dns_domain: "{{ cluster_name }}"
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## Container runtime
## docker for docker, crio for cri-o and containerd for containerd.
container_manager: docker
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## Settings for containerd runtimes (only used when container_manager is set to containerd)
#
# Settings for default containerd runtime
# containerd_default_runtime:
# type: io.containerd.runtime.v1.linux
# engine: ''
# root: ''
#
# Settings for additional runtimes for containerd configuration
# containerd_runtimes:
# - name: ""
# type: ""
# engine: ""
# root: ""
# Example for Kata Containers as additional runtime:
# containerd_runtimes:
# - name: kata
# type: io.containerd.kata.v2
# engine: ""
# root: ""
#
# Settings for untrusted containerd runtime
# containerd_untrusted_runtime_type: ''
# containerd_untrusted_runtime_engine: ''
# containerd_untrusted_runtime_root: ''
## Settings for containerized control plane (kubelet/secrets)
kubelet_deployment_type: host
helm_deployment_type: host
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# Enable kubeadm experimental control plane
kubeadm_control_plane: false
kubeadm_certificate_key: "{{ lookup('password', credentials_dir + '/kubeadm_certificate_key.creds length=64 chars=hexdigits') | lower }}"
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# K8s image pull policy (imagePullPolicy)
k8s_image_pull_policy: IfNotPresent
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# audit log for kubernetes
kubernetes_audit: false
# dynamic kubelet configuration
dynamic_kubelet_configuration: false
# define kubelet config dir for dynamic kubelet
# kubelet_config_dir:
default_kubelet_config_dir: "{{ kube_config_dir }}/dynamic_kubelet_dir"
dynamic_kubelet_configuration_dir: "{{ kubelet_config_dir | default(default_kubelet_config_dir) }}"
# pod security policy (RBAC must be enabled either by having 'RBAC' in authorization_modes or kubeadm enabled)
podsecuritypolicy_enabled: false
# Make a copy of kubeconfig on the host that runs Ansible in {{ inventory_dir }}/artifacts
# kubeconfig_localhost: false
# Download kubectl onto the host that runs Ansible in {{ bin_dir }}
# kubectl_localhost: false
# A comma separated list of levels of node allocatable enforcement to be enforced by kubelet.
# Acceptable options are 'pods', 'system-reserved', 'kube-reserved' and ''. Default is "".
# kubelet_enforce_node_allocatable: pods
## Optionally reserve resources for OS system daemons.
# system_reserved: true
## Uncomment to override default values
# system_memory_reserved: 512M
# system_cpu_reserved: 500m
## Reservation for master hosts
# system_master_memory_reserved: 256M
# system_master_cpu_reserved: 250m
# An alternative flexvolume plugin directory
# kubelet_flexvolumes_plugins_dir: /usr/libexec/kubernetes/kubelet-plugins/volume/exec
## Supplementary addresses that can be added in kubernetes ssl keys.
## That can be useful for example to setup a keepalived virtual IP
# supplementary_addresses_in_ssl_keys: [10.0.0.1, 10.0.0.2, 10.0.0.3]
## Running on top of openstack vms with cinder enabled may lead to unschedulable pods due to NoVolumeZoneConflict restriction in kube-scheduler.
## See https://github.com/kubernetes-sigs/kubespray/issues/2141
## Set this variable to true to get rid of this issue
volume_cross_zone_attachment: false
## Add Persistent Volumes Storage Class for corresponding cloud provider (supported: in-tree OpenStack, Cinder CSI,
## AWS EBS CSI, Azure Disk CSI, GCP Persistent Disk CSI)
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persistent_volumes_enabled: false
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## Container Engine Acceleration
## Enable container acceleration feature, for example use gpu acceleration in containers
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# nvidia_accelerator_enabled: true
## Nvidia GPU driver install. Install will by done by a (init) pod running as a daemonset.
## Important: if you use Ubuntu then you should set in all.yml 'docker_storage_options: -s overlay2'
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## Array with nvida_gpu_nodes, leave empty or comment if you don't want to install drivers.
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## Labels and taints won't be set to nodes if they are not in the array.
# nvidia_gpu_nodes:
# - kube-gpu-001
# nvidia_driver_version: "384.111"
## flavor can be tesla or gtx
# nvidia_gpu_flavor: gtx
## NVIDIA driver installer images. Change them if you have trouble accessing gcr.io.
# nvidia_driver_install_centos_container: atzedevries/nvidia-centos-driver-installer:2
# nvidia_driver_install_ubuntu_container: gcr.io/google-containers/ubuntu-nvidia-driver-installer@sha256:7df76a0f0a17294e86f691c81de6bbb7c04a1b4b3d4ea4e7e2cccdc42e1f6d63
## NVIDIA GPU device plugin image.
# nvidia_gpu_device_plugin_container: "k8s.gcr.io/nvidia-gpu-device-plugin@sha256:0842734032018be107fa2490c98156992911e3e1f2a21e059ff0105b07dd8e9e"